OEM-T Connector LED Polarity Tester

OEM-T tester plugs into any OEM-T power source side cable. Built-in LED will show green if everything is ok and red color if you have incorrect wiring or reverse polarity condition. Use this simple tool to check all of your OEM-T power cable connections. OEM-T tester plugs into any OEM-T power source side cable. Built-in LED will show green if everything is ok and red color if you have incorrect wiring or reverse polarity condition. Use this simple tool to check all of your OEM-T power cable connections.